ACTIVITY FEATURES OF FAULTS AT THE EAST OF ZHANGSHAN ON THE MIDDLE SEGMENT OF TANLU FAULT ZONE

doi:10.3969/j.issn.0253-4967.2016.03.006

Abstract

Abstract:

Given the scarcity of research on the activity of Xinyi-Sihong segment of the Tanlu Fault zone, this paper focuses on the Zhangshan segment where there are quite evident geomorphic features to complement the shortage of the research on the northern part of Xinyi-Sihong segment. This study enriches evidences for the late Quaternary activity and paleoseismological events on the Xinyi-Sihong segment. The Zhangshan segment is located at Xiaodian Town to Jintou Village of Suqian City, stretching towards NE for 7 kilometers with a dip angle of 60~80. Research of tectonic geomorphology shows that gullies in northern part of Zhangshan segment were evidently displaced, while in the southern, two NE-trending right-stepped fault scarps are developed, with an average height of 3 meters, which generally suggests that the fault was dominated by thrust and dextral motion. Two trenches were excavated in the southern part of Zhangshan segment, numbered Mayao trench 1 and Mayao trench 2. Both trenches reveal that:(1)within this segment, Tanlu Fault shows periodic fault activity, that is, normal faulting during Pliocene epoch while thrust faulting in Quaternary period; (2)an event occurred between 15.12ka BP to 11.82 BP; (3)the latest event possibly took place around 3 500 a BP. Based on integrated results of previous studies, we identify the dates of paleoseismic events on the Xinyi-Sihong segment as follows:more than 960 thousands years ago, early to middle period of late Pleistocene, (15.12~11.82)ka BP, (11.76±0.05)ka~(10.53±0.05)ka BP, (10.15±0.05)ka~(8.16±0.05)ka BP and 4 960~3 510a BP.

Key words: Tanlu Fault zone, paleoseismic events, Xinyi-Sihong segment, Zhangshan segment

摘要：

目前对于郯庐断裂带新沂-泗洪段的研究相对薄弱，通过对该段北侧构造地貌条件较好的嶂山段开展研究，充实了该段的晚第四纪活动证据与古地震事件序列。嶂山段总体位于宿迁市晓店镇至井头乡一带，长约7km。构造地貌研究显示嶂山段晚第四纪活动具有逆冲右旋的运动性质。古地震探槽研究揭示：1）郯庐断裂在该段具有分期活动特征，上新世期间为拉张正断，第四纪以来表现为逆冲；2）1次古地震发生在15.12~11.82ka BP；3）断裂最新活动年代可能为3 500a BP左右。综合前人的研究成果，目前郯庐断裂带新沂-泗洪段已揭露的古地震事件年代序列可归纳为：9.6×10⁴a以前，晚更新世早、中期，15.12~11.82ka BP，（11.76±0.05）~（10.53±0.05） ka BP，（10.15±0.05）~（8.16±0.05） ka BP，4 960~3 510a BP。

关键词: 郯庐断裂带, 古地震, 新沂, 泗洪, 嶂山

CLC Number:

P315.2

YANG Yuan-yuan, ZHENG Hai-gang, YAO Da-quan, SHU Peng, ZHAO Peng, SHENG Xiao-qi. ACTIVITY FEATURES OF FAULTS AT THE EAST OF ZHANGSHAN ON THE MIDDLE SEGMENT OF TANLU FAULT ZONE[J]. SEISMOLOGY AND GEOLOGY, 2016, 38(3): 582-595.

杨源源, 郑海刚, 姚大全, 疏鹏, 赵朋, 沈小七. 郯庐断裂带中段嶂山东侧断裂的活动特征[J]. 地震地质, 2016, 38(3): 582-595.

References

晁洪太, 李家灵, 崔昭文, 等, 1992. 郯庐断裂带腾马-窑上活断层的几何形态与破裂特征［M］//国家地震局地质研究所编. 活动断裂研究(2). 北京:地震出版社. 208-217.
CHAO Hong-tai, LI Jia-ling, CUI Zhao-wen, et al. 1992. Geometric patterns and fracture characteristics of the active fault along the Tengma-Yaoshang segment of the Tanlu fault zone［M］//Institute of Geology, State Seismological Bureau(ed). Research of Active fault (2). Seismological Press, Beijing. 208-217(in Chinese).
晁洪太, 李家灵, 崔昭文, 等. 1994. 郯庐断裂带中段全新世活断层的几何结构与分段［M］//国家地震局地质研究所编. 活动断裂研究(3). 北京:地震出版社. 180-190.
CHAO Hong-tai, LI Jia-ling, CUI Zhao-wen, et al. 1994. Geometry and segmentation of the Quaternary fault in the middle segment of Tanlu fault zone［M］//Institute of Geology, State Seismological Bureau(ed). Research of Active fault (3). Seismological Press, Beijing. 180-190(in Chinese).
晁洪太, 李家灵, 崔昭文, 等. 1995. 郯庐活断层与1668年郯城8.5级地震灾害［J］. 海洋地质与第四纪地质, 15(3):69-80.
CHAO Hong-tai, LI Jia-ling, CUI Zhao-wen, et al. 1995. Active faults in Tanlu fault zone and the hazards produced by the 1668 Tancheng earthquake(M=8.5)［J］. Marine Geology and Quaternary Geology, 5(3):69-80(in Chinese).
晁洪太, 李家灵, 崔昭文, 等. 1997. 与1668年郯城8.5级地震断层有关的几个问题讨论［J］. 华北地震科学, 15(4):18-25.
CHAO Hong-tai, LI Jia-ling, CUI Zhao-wen, et al. 1997. Discussion on several problems related to the seismic fault of the 1668 Tancheng earthquake(M=8 1/2)［J］. North China Earthquake Sciences, 15(4):18-25(in Chinese).
高维明, 李家灵, 孙竹友, 等. 1980. 沂沭大裂谷的生成与演化［J］. 地震地质, 2(3):11-18.
GAO Wei-min, LI Jia-ling, SUN Zhu-you, et al. 1980. Formation and evolution of the Yihe-Suhe continental rift［J］. Seismology and Geology, 2(3):11-18(in Chinese).
高维明, 林趾祥, 郑郎荪, 等. 1988. 鲁南地震危险性评定及烈度区划研究成果概述［J］. 中国地震, 4(3):1-8.
GAO Wei-ming, LIN Zhi-xiang, ZHENG Lang-sun, et al. 1988. Overview of Lunan seismic hazard assessment and intensity zoning research［J］. Earthquake Research in China, 4(3):1-8(in Chinese).
高维明, 郑郎荪. 1991. 郯庐断裂带的活断层分段与潜在震源区的划分［J］. 中国地震, 7(1):87-91.
GAO Wei-ming, ZHENG Lang-sun. 1991. Active fault segmentation and the identification of potential seismic zones along the Tanlu Fault［J］. Earthquake Research in China, 7(1):87-91(in Chinese).
国家地震局地质研究所. 1987. 郯庐断裂［M］. 北京:地震出版社. 219-222.
Institute of Geology, State Seismological Bureau. 1987. The Tan-Lu Fault Zone［M］. Seismological Press, Beijing. 219-222(in Chinese).
胡望水, 吕炳全, 官大勇, 等. 2003. 郯庐断裂带及其周缘中新生代盆地发育特征［J］. 海洋地质与第四纪地质, 23(4):51-58.
HU Wang-shui, LU Bing-quan, GUAN Da-yong, et al. 2003. Characteristics of Tanlu fault zone and development of Mesozoic basins along it［J］. Marine Geology and Quaternary Geology, 23(4):51-58(in Chinese).
江苏地质矿产局. 1984. 江苏省及上海市区域地质志［M］. 北京:地质出版社. 278-370.
Bureau of Geology and Mineral Resources of Jiangsu Province. 1984. Regional Geology of Jiangsu Province and Shanghai Municipality, People's Republic of China［M］. Geological Publishing House, Beijing. 278-370(in Chinese).
江娃利, 刘仲温, 李咸业, 等. 1994. 山东沂沭断裂带全新世断层展布及运动特征［M］//中国地震学会地震地质专业委员会编. 中国活动断层研究. 北京:地震出版社. 146-153.
JIANG Wa-li, LIU Zhong-wen, LI Xian-ye, et al. 1994. Extension and kinematic characteristics of the Holocene faulting of Yishu fault zone, Shandong Provence［M］//Seismogeological Committee of the Seismological Society of China(ed). Research on Active Fault in China. Seismological Press, Beijing. 146-153(in Chinese).
李家灵, 晁洪太, 崔昭文, 等. 1991. 郯庐断裂带郯城-新沂段活断层研究［M］//国家地震局地质研究所编. 活动断裂研究(1). 北京:地震出版社. 164-173.
LI Jia-ling, CHAO Hong-tai, CUI Zhao-wen, et al. 1991. Research on the active fault of Tancheng-Xinyi segment in the Tanlu fault zone［M］//Institute of Geology, State Seismological Bureau(ed). Research of Active Fault (1). Seismological Press, Beijing. 164-173(in Chinese).
李家灵, 晁洪太, 崔昭文, 等. 1994. 郯庐活断层的分段及其大震危险性分析［J］. 地震地质, 16(2):121-126.
LI Jia-ling, CHAO Hong-tai, CUI Zhao-wen, et al. 1994. Segmentation of active fault along the Tancheng-Lujiang fault zone and evaluation of strong earthquake risk［J］. Seismology and Geology, 16(2):121-126(in Chinese).
李家灵, 高维明, 孙竹友, 等. 1984. 沂沭裂谷消亡与华北裂谷新生代构造应力场［J］. 构造地质论丛, 3:318-327.
LI Jia-ling, GAO Wei-ming, SUN Zhu-you, et al. 1984. Termination of the Yishu valley and Cenozoic stress field of the North China rift valley［J］. Collection of Structural Geology, 3:318-327(in Chinese).
李起彤. 1990. 郯庐断裂带江苏段全新世活动有证据［N］. 中国地震报, 3.
LI Qi-tong. 1990. There is evidence to the Holocene activities of the Jiangsu segment of Tanlu fault zone［N］. China Earthquake News, 3(in Chinese).
李起彤. 1994. 郯庐断裂带江苏段全新世活动新证据［M］//中国地震学会地震地质专业委员会编. 中国活动断层研究. 北京:地震出版社. 140-145.
LI Qi-tong. 1994. New evidence for the Holocene movement along the Jiangsu segment of the Tanlu fault zone［M］//Seismogeological Committee of Seismological Society of China(ed). Research on Active Fault in China. Seismological Press, Beijing. 140-145(in Chinese).
林伟凡, 高维明. 1987. 沂沭断裂带大地震复发周期［J］. 中国地震, 3(3):34-40.
LIN Wei-fan, GAO Wei-ming. 1987. The recurrence of large earthquake in the Yishu fault zone［J］. Earthquake Research in China, 3(3):34-40(in Chinese).
彭贵, 焦文强. 1990. 嶂山闸地裂缝沉积物的¹⁴C年龄［J］. 地震地质, 12(2):179-182.
PENG Gui, JIAO Wen-qiang. 1990. Radiocarbon ages of sediments in Zhangshanzha ground fissures and their geological significance［J］. Seismology and Geology, 12(2):179-182(in Chinese).
沈小七, 姚大全, 郑海刚, 等. 2015. 郯庐断裂带重岗山-王迁段晚更新世以来的活动习性［J］. 地震地质, 37(1):139-148. doi:10.3969/j.issn.0253-4967.2015.01.011.
SHEN Xiao-qi, YAO Da-quan, ZHENG Hai-gang, et al. 2015. The research on activity behavior of Chonggangshan-Wangqian segment of Tanlu fault zone since late Pleistocene［J］. Seismology and Geology, 37(1):139-148(in Chinese).
郯庐活动断裂带地质填图课题组. 2013. 郯庐活动断裂带地质图(1/5万)说明书［M］. 北京:地质出版社. 1-26.
The Research Group for Tancheng-Lujiang Fault Zone Geological Mapping. 2013. The Explanatory Notes on the Geological Map of the Tanlu Active Fault Zone(1︰50000)［M］. Geological Publishing House, Beijing. 1-26(in Chinese).
王小凤, 李中坚, 陈伯林, 等. 2001. 郯庐断裂带［M］. 北京:地质出版社. 15-59.
WANG Xiao-feng, LI Zhong-jian, CHEN Bo-lin, et al. 2001. On Tan-Lu Fault Zone［M］. Geological Publishing House, Beijing. 15-59(in Chinese).
王志才, 贾荣光, 孙昭民, 等. 2005. 沂沭断裂带安丘-莒县断裂安丘-朱里段几何结构与活动特征［J］. 地震地质, 27(2):212-220.
WANG Zhi-cai, JIA Rong-guang, SUN Zhao-min, et al. 2005. Geometry and activity of the Anqiu-Zhuli segment of the Anqiu-Juxian Fault in the Yishu fault zone［J］. Seismology and Geology, 27(2):212-220(in Chinese).
吴少武, 张绍治, 刘仲方. 1988. 郯庐断裂带江苏段活动特征［J］. 中国地震, 4(3):158-161.
WU Shao-wu, ZHANG Shao-zhi, LIU Zhong-fang. 1988. Characteristics of activities for the Jiangsu segment of Tanlu fault zone［J］. Earthquake Research in China, 4(3):158-161(in Chinese).
谢瑞征, 丁政, 李端璐. 1990. 江苏宿迁发现古地震遗迹［J］. 地震地质, 12(4):378-379.
XIE Rui-zheng, DING Zheng, LI Duan-lu. 1990. Discovery of paleo-earthquake traces in Suqian area, Jiangsu Province［J］. Seismology and Geology, 12(4):378-379(in Chinese).
谢瑞征, 丁政, 朱书俊, 等. 1991a. 郯庐断裂带江苏及邻区第四纪活动特征［J］. 地震学刊, 4:1-7.
XIE Rui-zheng, DING Zheng, ZHU Shu-jun, et al. 1991a. Active characteristics in the Jiangsu segment of the Tanlu fault zone and its vicinity［J］. Journal of Seismology, 4:1-7(in Chinese).
谢瑞征, 朱书俊, 丁政. 1991b. 郯庐断裂带江苏段全新世活动问题的商榷［J］. 地震学刊, 4:15-18.
XIE Rui-zheng, DING Zheng, Zhu Shu-jun, et al. 1991b. A discussion of Holocene activity of the Jiangsu segment of Tanlu fault zone［J］. Journal of Seismology, 4:15-18(in Chinese).
许志琴. 1984. 郯庐裂谷系概述［J］. 构造地质论丛, 3:39-46.
XU Zhi-qin. 1984. Outline of the Tan-Lu rift valley system［J］. Collection of Structural Geology, 3:39-46(in Chinese).
翟炳松, 侍继成, 杨一冲. 1992. 郯庐断裂带泗洪段全新世活动性初步研究［J］. 地震, 5:61-71.
ZHAI Bing-song, SHI Ji-cheng, YANG Yi-chong. 1992. Preliminary research on recent activity along Sihong segment of Tanlu fault zone［J］. Earthquake, 5:61-71(in Chinese).
张鹏, 李丽梅, 张景发, 等. 2011. 郯庐断裂带江苏段第四纪活动特征及其动力学背景探讨［J］. 防灾减灾工程学报, 31(4):389-396.
ZHANG Peng, LI Li-mei, ZHANG Jing-fa, et al. 2011. A discussion of characteristics of activities in Quaternary for the Jiangsu segment of Tanlu fault zone and its geodynamic setting［J］. Journal of Disaster Prevention and Mitigation Engineering, 31(4):389-396(in Chinese).
朱光, 王道轩, 刘国生, 等. 2004. 郯庐断裂带的演化及其对西太平洋板块运动的相应［J］. 地质科学, 39(1):36-49.
ZHU Guang, WANG Dao-xuan, LIU Guo-sheng, et al. 2004. Evolution of the Tanlu fault zone and its responses to plate movements in west Pacific basin［J］. Chinese Journal of Geology, 39(1):36-49(in Chinese).
Xu Jia-wei, Zhu Guang. 1994. Tectonic models of the Tan-Lu Fault zone, eastern China［J］. International Geol Rev, 36:F771-784.

[1]	ZHAO Peng, LI Jun-hui, TAO Yue-chao, SHU Peng, FANG Zhen. NEW ACTIVITY PHENOMENA REVEALED BY TRENCH ON THE NORTH SIDE OF NÜSHAN LAKE IN THE TANLU FAULT ZONE AND DISCUSSION [J]. SEISMOLOGY AND GEOLOGY, 2023, 45(2): 338-354.
[2]	YANG Yuan-yuan, LI Peng-fei, LU Shuo, SHU Peng, PAN Hao-bo, FANG Liang-hao, ZHENG Hai-gang, ZHAO Peng, ZHENG Ying-ping, YAO Da-quan. PALEOEARTHQUAKES AND VERTICAL SLIP RATES ON THE HUAI RIVER-NÜSHAN LAKE SEGMENT OF FAULT F₅ IN THE MIDDLE SECTION OF THE TANLU FAULT ZONE [J]. SEISMOLOGY AND GEOLOGY, 2022, 44(6): 1365-1383.
[3]	QIN Jing-jing, LIU Bao-jin, WANG Zhi-cai, FENG Shao-ying, DENG Xiao-juan, HUA Xin-sheng, LI Qian. RESEARCH ON SHALLOW STRUCTURAL CHARACTERISTICS IN THE BANQUAN SEGMENT OF ANQIU-JUXIAN FAULT ZONE BASED ON SHALLOW SEISMIC REFLECTION PROFILING [J]. SEISMOLOGY AND GEOLOGY, 2022, 44(2): 349-362.
[4]	ZHENG Ying-ping, YANG Xiao-ping, SHU Peng, LU Shuo, FANG Liang-hao, SHI Jin-hu, HUANG Xiong-nan, LIU Chun-ru. STUDY ON THE LATEST ACTIVITY OF WUYUNSHAN-HEFEI FAULT IN HEFEI BASIN, THE WESTERN BRANCH OF THE TANLU FAULT ZONE [J]. SEISMOLOGY AND GEOLOGY, 2020, 42(1): 50-64.
[5]	ZHANG Ji-hong, ZHAO Guo-ze, DONG Ze-yi, WANG Li-feng, HAN Bing, WANG Qing-lin, TANG Ting-mei, WANF Mei. STUDY ON THE ELECTRICAL STRUCTURE OF THE ANQIU AND JUXIAN ELECTROMAGNETIC STATIONS IN THE TANLU FAULT ZONE [J]. SEISMOLOGY AND GEOLOGY, 2019, 41(5): 1239-1253.
[6]	ZHANG Peng, ZHANG Yuan-yuan, LI Li-mei, JIANG Xin, MENG Ke. NEW EVIDENCES OF HOLOCENE ACTIVITY IN THE JIANGSU SEGMENT OF ANQIU-JUXIAN FAULT OF THE TANLU FAULT ZONE [J]. SEISMOLOGY AND GEOLOGY, 2019, 41(3): 576-586.
[7]	WENG Ai-hua, LI Jian-ping, FAN Xiao-ping, LI Si-rui, HAN Jiang-tao, LI Da-jun, LI Ya-bin, ZHAO Xiang-yang, TANG Yu. FINE ELECTRICAL STRUCTURE BENEATH THE EPICENTER OF 1668 TANCHENG M_S8.5 EARTHQUAKE REVEALED BY MT SOUNDING [J]. SEISMOLOGY AND GEOLOGY, 2018, 40(2): 396-409.
[8]	YANG Yuan-yuan, ZHAO Peng, ZHENG Hai-gang, YAO Da-quan, WANG Xing-zhou, MIAO Peng, LI Jun-hui, WANG Xiao-li, SHU Peng. EVIDENCE OF HOLOCENE ACTIVITY DISCOVERED IN ANHUI ZIYANGSHAN SEGMENT OF TANLU FAULT ZONE [J]. SEISMOLOGY AND GEOLOGY, 2017, 39(4): 644-655.
[9]	ZHAO Peng, YAO Da-quan, YANG Yuan-yuan, ZHENG Hai-gang, FANG Liang-hao. THE NEW ACTIVITY OF TAN-LU FAULT ZONE IN SEGMENT OF DAHONGSHAN SINCE LATE QUATERNARY [J]. SEISMOLOGY AND GEOLOGY, 2017, 39(3): 550-560.
[10]	CHEN An-guo, ZHOU Tao-fa, WANG Jian, LIU Dong-jia, GE Can. ANALYSIS ON STRUCTURAL FEATURES:INSIGHTS FROM SATELLITE-DERIVED GRAVITY MODEL AND SEISMIC PATTERN [J]. SEISMOLOGY AND GEOLOGY, 2016, 38(3): 696-710.
[11]	XU Han-gang, FAN Xiao-ping, RAN Yong-kang, GU Qin-ping, ZHANG Peng, LI Li-mei, ZHAO Qi-guang, WANG Jin-yan. NEW EVIDENCES OF THE HOLOCENE FAULT IN SUQIAN SEGMENT OF THE TANLU FAULT ZONE DISCOVERED BY SHALLOW SEISMIC EXPLORATION METHOD [J]. SEISMOLOGY AND GEOLOGY, 2016, 38(1): 31-43.
[12]	ZHANG Peng, LI Li-mei, RAN Yong-kang, CAO Jun, XU Han-gang, JIANG Xin. research on characteristics of late quaternary activity of the jiangsu segment of anqiu-juxian fault in the tanlu fault zone [J]. SEISMOLOGY AND GEOLOGY, 2015, 37(4): 1162-1176.
[13]	WANG Peng, ZHENG Jian-chang, LIU Xi-qiang, XU Chang-peng, LI Xia. research of source parameters and stress state in shandong segment of tanlu fault zone [J]. SEISMOLOGY AND GEOLOGY, 2015, 37(4): 966-981.
[14]	YIN Jing-yuan, LIU Lan, WANG Hua-lin, LI Cheng-fan. THE RESEARCH ON THE IMPACT OF DISPLACEMENT FIELD OF JAPAN 3·11 EARTHQUAKE ON THE SOUTH CENTRAL SECTION OF TANLU FAULT ZONE [J]. SEISMOLOGY AND GEOLOGY, 2015, 37(3): 928-938.
[15]	RAN Yong-kang, WANG Hu, Li Yan-bao. KEY TECHNIQUES AND SEVERAL CASES ANALYSIS IN PALEO- SEISMIC STUDIES IN MAINLAND CHINA(5): NONVISIBILITY, DIEOUT OF FAULT STRANDS AND IDENTIFICATION OF YOUNG PALEOSEISMIC EVENTS [J]. SEISMOLOGY AND GEOLOGY, 2015, 37(2): 343-356.